I put a diffusion model in a stylesheet. No JavaScript.
Try it: metrix187.github.io/diffusion.css · Code: github.com/Metrix187/diffusion.css Press the button and the stylesheet freezes a seed, turns it into noise, an…
Englishdev.to CSS
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Building a Real-Time Data Pipeline with AWS Kinesis, S3, and Snowflake
Modern applications generate data continuously. E-commerce platforms generate orders and customer activity. IoT devices send sensor readings. Financial applicat…
Englishdev.to AWS
How to Measure UI Padding & Pixel Distances on Any Windows Screen with a Smart Edge-Detecting Ruler
When building or reviewing a frontend UI, desktop app, or Figma implementation on Windows, you constantly need to check: Is this button padding actually 16px or…
Englishdev.to WebDev
Building ERPSav: Lease Overcharges Are a Rules Problem — What Worked, What Broke
Rent statements rarely overcharge in one dramatic line. The extra cost arrives in small, plausible pieces: a common-area maintenance reconciliation that runs a …
Englishdev.to WebDev
Notes on generating QR codes for print: error correction, logo holes and quiet zones
I work on sellphotos.online , where this was originally published. Every event on sellphotos.online gets a QR code. Photographers print it on posters, notice bo…
Englishdev.to WebDev
How to Build a Returns Auction Marketplace: Architecture, Fraud Controls, and Scaling Costs
NRF expects $1.013 trillion in 2026 holiday sales , while its latest research says fraud continues shifting across digital channels. The controversial takeaway:…
Englishdev.to WebDev
Watermarking 200 photos in the browser, with nothing uploaded
I work on sellphotos.online , where this was originally published. A watermark tool that uploads your photos to a server asks photographers to hand over the ver…
Englishdev.to WebDev
Should you add an AI chatbot to your website?
Adding an artificial intelligence assistant to a business website sounds like a modern upgrade. With a few clicks or a short script, you can deploy a conversati…
Englishdev.to WebDev
How to check domain age, expiry and DMARC for thousands of domains with free official APIs
WHOIS is on its way out. For generic domains like .com, .net and .org, ICANN now requires registries and registrars to answer over RDAP , the Registration Data …
Englishdev.to WebDev
Making a favicon from an SVG, measured: what breaks at 16 pixels
Every favicon guide gives you the same list of files. I built the set from a real 716-byte logo to see the sizes, and found the one check most guides skip. TL;D…
Englishdev.to WebDev
Sales Tax and VAT for Vibe-Coded Apps: What You Actually Have to Do
Your app has its first few paying customers: one in Germany, one in the US, one in India. Then somebody asks for an invoice with their VAT number on it, and you…
Englishdev.to WebDev
How to Set Up SafeLine for Reviewing WAF Attack Events by Domain and Port
When several websites share a WAF, an attack event needs context: which hostname received the request, which public port handled it, and which application was b…
Englishdev.to Security
Domain-Based vs Port-Based WAF Configuration: How to Review Attack Events
An attack list becomes more useful when you can connect each event to the public application endpoint it concerns. A hostname alone may be insufficient when an …
Englishdev.to Security
Security Tip: HSTS — Force HTTPS So Nobody Downgrades Your Visitors
You installed an SSL certificate, your site loads over HTTPS, and the padlock shows. That should be the end of the story — but it isn't. The first time a visito…
Englishdev.to Security
How to Test Path Traversal and XXE Requests on a WAF with SafeLine
Testing a web application firewall requires more than sending a suspicious URL and seeing an error. You need to confirm that traffic reaches the firewall, estab…
Englishdev.to Security
Direct WAF Placement vs an Existing Proxy Chain: How to Test Path Traversal and XXE
A blocked request is useful evidence only when you know which component blocked it. When testing path traversal and XML External Entity (XXE) requests, placemen…
Englishdev.to Security
How to Auto-Redact Emails, API Keys & PII in Screenshots Before Pasting to ChatGPT (100% Offline on Windows)
Every day, developers and knowledge workers take screenshots of error logs, dashboards, billing pages, or Slack threads and paste them directly into ChatGPT, Cl…
Englishdev.to Security
Your Side Project Doesn't Need a Security Team (But It Does Need a Checklist)
I used to think that security was something only big enterprises needed to worry about. "Who's going to hack my little side project?" I'd tell myself. "I'm just…
Englishdev.to Security
AI Layoffs 2026: Which Jobs Are Actually Being Cut — and Which Ones Are Hiring
AI Layoffs 2026: Which Jobs Are Actually Being Cut — and Which Ones Are Hiring By Shakeel Ahmed — AI Growth Lab · November 9, 2026 Nearly 200,000 tech workers h…
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Building a Social Publishing Queue That Does Not Duplicate Posts
A publishing request can succeed even when your application never receives the response. If a worker treats that timeout as a failure and immediately repeats th…
Englishdev.to Security